12271879 has 2 divisors, whose sum is σ = 12271880. Its totient is φ = 12271878.

The previous prime is 12271873. The next prime is 12271951. The reversal of 12271879 is 97817221.

12271879 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12271879 - 2³ = 12271871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12271871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6135939 + 6135940.

It is an arithmetic number, because the mean of its divisors is an integer number (6135940).

Almost surely, 2^12271879 is an apocalyptic number.

12271879 is a deficient number, since it is larger than the sum of its proper divisors (1).

12271879 is an equidigital number, since it uses as much as digits as its factorization.

12271879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 37.

The square root of 12271879 is about 3503.1241770739. The cubic root of 12271879 is about 230.6589734349.

The spelling of 12271879 in words is "twelve million, two hundred seventy-one thousand, eight hundred seventy-nine".